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diff --git a/m4/posix2-version.m4 b/m4/posix2-version.m4
deleted file mode 100644 (file)
index 48fdfaa..0000000
--- a/m4/posix2-version.m4
+++ /dev/null
@@ -1,55 +0,0 @@
-# serial 1
-# Set the default level of POSIX conformance at configure-time.
-# Build with `./configure DEFAULT_POSIX2_VERSION=199209 ...' to
-# support the older version, thus preserving portability with
-# scripts that use sort +1, tail +32, head -1, etc.
-# Note however, that this breaks tools that might run commands
-# like `sort +some-file' that conform with the newer standard.
-
-dnl Copyright (C) 2004 Free Software Foundation, Inc.
-
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-AC_DEFUN([gl_DEFAULT_POSIX2_VERSION],
-[
-  AC_MSG_CHECKING([for desired default level of POSIX conformance])
-  gl_default_posix2_version=none-specified
-  if test -n "$ac_cv_env_DEFAULT_POSIX2_VERSION_set"; then
-    gl_default_posix2_version=$ac_cv_env_DEFAULT_POSIX2_VERSION_value
-    AC_DEFINE_UNQUOTED(DEFAULT_POSIX2_VERSION,
-      $gl_default_posix2_version,
-      [Define the default level of POSIX conformance for these tools.
-       The value is of the form YYYYMM, specifying the year and month the
-       standard was adopted.  Unless explicitly selected at configure-time,
-       this symbol is not defined.])
-  fi
-  AC_MSG_RESULT($gl_default_posix2_version)
-  AC_ARG_VAR(
-    [DEFAULT_POSIX2_VERSION],
-    [These tools normally conform to the version of POSIX that is standard
-     for your system, as determined by the value of _POSIX2_VERSION from
-     the C system header, <unistd.h>.  Use this option to compile-in
-     a different default.
-     Regardless of the compiled-in default, the desired behavior may be
-     selected at tool run time via the _POSIX2_VERSION environment variable.
-
-     Use `DEFAULT_POSIX2_VERSION=199209' to
-     enable option handling that is compatible with POSIX 1003.2-1992.
-     CAUTION: this makes tools like head, tail, uniq, and sort accept
-     options that start with `+'; but such `options' must be treated
-     as files, according to the more recent POSIX 1003.1-2001 standard.
-     This option also makes head, tail, etc. accept options like -1
-     and -30.  Use of this build-time option merely sets the default.
-
-     Use `DEFAULT_POSIX2_VERSION=200112' to
-     enable option handling that is compatible with POSIX 1003.1-2001.
-     CAUTION: this makes tools like head, tail, uniq, and sort treat
-     as files arguments that start with `+'.  This also makes options
-     like -1 and -30 (to e.g. head, tail) invalid.  Instead you must
-     use the -n 1 or -n 30 form.
-    ])
-])